Question

I have a C++ MFC MDI application. I have a tool bar with some buttons on it. I need to add some check boxes to this toolbar and i need them to have custom bitmaps just as my buttons do. Thanks

EDIT:
By bitmpas i refer to the pixel images that can be created using the tool bar editor in visual stuidos 2008. I would like a picture (of my creation) instead of the usual tick box.

Answer 1

You don’t use checkboxes on toolbars.

You should rather use regular buttons in Check mode. That means that the button stays pressed when user releases it. Clicking it a second time releases the button. This is the same behaviour as a checkbox.

You can either set a toolbar button as checkable by code:

m_ToolBar.SetButtonStyle(nButtonId, TBBS_CHECKBOX);

Or by enabling the corresponding property in the resource editor.

If you want to modify the image displayed when the button is pressed, in your ON_UPDATE_COMMAND_UI handler, use m_ToolBar.GetButtonInfo() to check if the image matches the state. If not, change it using m_ToolBar.SetButtonInfo() and specify the index of an extra image added to the image list of the toolbar.